Fixnum#to_s seems to generate strings immune to #[]= #1551

dennyabraham opened this Issue Mar 7, 2014 · 1 comment


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Test code

x = 100.to_s
x[0] = '2'
p x

MRI result


JRuby result


Tested against
ruby 1.9.3p392 (2013-02-22 revision 39386) [x86_64-darwin12.5.0] and jruby 1.7.2 (1.9.3p327) 2013-01-04 302c706 on Java HotSpot(TM) 64-Bit Server VM 1.7.0_12-ea-b08 +indy [darwin-x86_64]



Fixed by 93bbb7d

@lucasallan lucasallan closed this Apr 22, 2014
@enebo enebo added this to the JRuby 1.7.13 milestone Jun 24, 2014
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